Butterfly valve machining device and method

Abstract

The invention provides a butterfly valve machining device and method. The machining device comprises a base, a positioning mechanism and a pressing mechanism, wherein the positioning mechanism and the pressing mechanism are correspondingly arranged on the base. The positioning mechanism comprises a positioning seat, a positioning groove matched with the butterfly valve is formed in the positioning seat, and at least four liftable adjusting assemblies are evenly arranged at the positions, corresponding to the periphery of the positioning groove, of the positioning seat. The pressing mechanism comprises a positioning column, a limiting column and a pressing plate; a kidney-shaped hole matched with the positioning column is formed in one end of the pressing plate, an assembly hole matched with the limiting column is formed in the other end of the pressing plate, and the length direction of the kidney-shaped hole is the same as that of the pressing plate. According to the butterfly valve machining device and method, the positioning mechanism and the pressing mechanism are correspondingly arranged on the base, supporting and positioning of the butterfly valve can be achieved, pressing and fixing of the butterfly valve can also be achieved, and marking and machining are integrated.

Description

Technical Field

[0001] The invention belongs to the field of general manufacturing of aviation accessories, and in particular relates to a butterfly valve processing device and method. Background Art

[0002] With the rapid development of my country's aerospace industry, the technical requirements for the anti-surge control valve of aircraft engines are getting higher and higher. The anti-surge control valve product adjusts the outlet flow of the auxiliary power unit load compressor by adjusting the opening of the anti-surge control valve butterfly valve according to the control signal output by the electronic controller to prevent the auxiliary power unit from surging. Among them, the butterfly valve assembly, the main component of the butterfly valve, is installed on the shaft and supported by the bearing to ensure that the butterfly valve can rotate flexibly in the housing to open or close the butterfly valve. As a key component of the butterfly valve, the processing quality of the butterfly valve is particularly important. The butterfly valve is generally a precision casting blank. The first processing process is generally to file the shape and mark the line. After marking, the part is milled to process the step surface and hole, which is used as the processing benchmark for the subsequent finishing process. Therefore, the marking quality and the processing of the first process after marking directly affect the processing quality of the butterfly valve. However, in the existing processing device and method, marking and processing are separate operations, which makes it inconvenient to align the butterfly valve parts, affecting the processing quality and processing efficiency of the butterfly valve parts. Summary of the invention

[0003] In view of this, the present invention aims to propose a butterfly valve processing device and method to solve the problem that marking and processing are separate operations in existing processing devices and methods, which leads to inconvenience in aligning butterfly valve parts and affects the processing quality and efficiency of butterfly valve parts.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] In a first aspect, an embodiment of the present invention provides a butterfly valve processing device, comprising a base, and a positioning mechanism and a pressing mechanism correspondingly arranged on the base;

[0006] The positioning mechanism comprises a positioning seat, the positioning seat is provided with a positioning groove matched with the butterfly valve, and at least four lifting and lowering adjustment components are evenly arranged on the positioning seat at positions corresponding to the surroundings of the positioning groove;

[0007] The clamping mechanism includes a positioning column, a limiting column and a pressing plate; one end of the pressing plate is provided with a waist-shaped hole that cooperates with the positioning column, and the other end is provided with an assembly hole that cooperates with the limiting column, and the length direction of the waist-shaped hole is the same as the length direction of the pressing plate; one end of the positioning column passing through the waist-shaped hole is provided with a liftable positioning component, and the other end is arranged on the base; one end of the limiting column passes through the assembly hole, and the other end supports the base, and a liftable limiting component is provided on the limiting column at a position corresponding to the position between the pressing plate and the positioning seat.

[0008] Furthermore, the positioning seat and the limiting column are correspondingly arranged on the left and right sides of the base, and the positioning column is correspondingly arranged in the middle of the base.

[0009] Furthermore, one end of the pressing plate facing the positioning seat is provided with a conical end portion.

[0010] Furthermore, the adjustment assembly includes a top screw, and the base is provided with a threaded hole that cooperates with the top screw.

[0011] Furthermore, an annular groove is provided below the positioning seat, and the threaded hole is connected to the annular groove.

[0012] Furthermore, the positioning assembly includes a positioning nut and a positioning gasket, and the positioning gasket is arranged between the positioning nut and the pressure plate.

[0013] Furthermore, the limiting assembly includes a limiting nut and a limiting gasket, and the limiting gasket is arranged between the limiting nut and the pressure plate.

[0014] Furthermore, a support portion is provided at one end of the limiting column facing the base, and a threaded portion cooperating with the limiting nut is provided at the other end, and a diameter of the support portion is greater than a diameter of the threaded portion.

[0015] Furthermore, the positioning seat is detachably mounted on the base, at least two rhombus pins are evenly arranged on the base along the circumference of the positioning seat, and the positioning seat is provided with positioning holes that cooperate with the rhombus pins.

[0016] In a second aspect, an embodiment of the present invention further provides a method for processing a butterfly valve, comprising:

[0017] Step 101, placing the part to be processed on the positioning seat, using the positioning mechanism to support, position and level the part to be processed, and then using the clamping mechanism to clamp and fix the part to be processed;

[0018] Step 102, performing precision milling of the step surface and drilling of the to-be-processed part on the positioning seat to obtain a pre-processed part;

[0019] Step 103, deburring the primary processed parts to obtain secondary processed parts;

[0020] Step 104, using the tailstock top of the lathe fixture to hold the primary processed part, and positioning it with the hole on the secondary processed part, and then finishing the spherical surface and the groove to obtain the tertiary processed part;

[0021] Step 105, use soft boring jaws to clamp the spherical surface of the three-processed part, and use grooves to position it. After the center runout is ≯0.03mm, the surface and the hole are finely milled to obtain a butterfly valve;

[0022] Step 106: Perform aging treatment on the butterfly valve to eliminate processing stress.

[0023] Compared with the prior art, the butterfly valve processing device and method described in the present invention have the following advantages:

[0024] (1) The present invention describes a butterfly valve processing device and method, wherein the processing device can not only realize the support and positioning of the butterfly valve, but also realize the clamping and fixing of the butterfly valve by correspondingly arranging a positioning mechanism and a clamping mechanism on the base, integrating marking and processing in one, and is easy to assemble and use, which is conducive to improving processing accuracy and processing quality.

[0025] (2) The butterfly valve processing device and method described in the present invention, wherein the processing method can obtain a higher processing benchmark for the butterfly valve casting blank, ensuring the processing quality and manufacturing consistency of the butterfly valve. At the same time, it can also simplify the manufacturing method and process of the butterfly valve, simplify the clamping and operation during the processing, not only easy to copy, but also can effectively ensure the processing quality of the butterfly valve and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of a butterfly valve processing device according to the first embodiment of the present invention;

[0028] Figure 2 It is a schematic cross-sectional structural diagram of a butterfly valve processing device described in Example 1 of the present invention.

[0029] Description of reference numerals:

[0030] 1. Base; 2. Positioning seat; 3. Pressure plate; 4. Positioning column; 5. Limiting column; 6. Positioning groove; 7. Adjustment assembly; 8. Annular groove; 9. Positioning nut; 10. Positioning gasket; 11. Limiting nut; 12. Limiting gasket; 13. Waist-shaped hole; 14. Conical end; 15. Support part; 16. Threaded part; 17. Diamond pin; 18. Butterfly valve. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] Embodiment 1

[0033] Figure 1 This is a schematic diagram of the structure of a butterfly valve processing device according to Embodiment 1 of the present invention. This processing device can realize the alignment and assembly of butterfly valve parts, which is beneficial to improving the processing quality and manufacturing consistency of butterfly valves to meet the requirements of aviation accessories. Figure 2 This is a cross-sectional structural diagram of a butterfly valve processing device according to Embodiment 1 of the present invention. Figure 1 and Figure 2 The processing device includes a base 1 and a positioning mechanism and a pressing mechanism correspondingly arranged on the base 1.

[0034] The positioning mechanism includes a positioning seat 2, on which a positioning groove 6 cooperating with the butterfly valve 18 is provided, and at least four liftable adjustment components 7 are evenly arranged at positions around the positioning groove 6 on the positioning seat 2. Exemplarily, the base 1 and the positioning seat 2 can both be disc-shaped structural members, the positioning groove 6 is a circular groove, and the edge of the positioning seat 2 is provided with a slot connected to the positioning groove 6, and two slots are correspondingly arranged to accommodate the shaft end of the butterfly valve. By providing the slots, the positioning seat 2 can better realize the positioning of the butterfly valve, prevent the butterfly valve from moving during the processing, and enable the positioning mechanism to better support and position the butterfly valve.

[0035] The above-mentioned clamping mechanism includes a positioning column 4, a limiting column 5 and a pressing plate 3; one end of the pressing plate 3 is provided with a waist-shaped hole 13 that cooperates with the positioning column 4, and the other end is provided with an assembly hole that cooperates with the limiting column 5, and the length direction of the waist-shaped hole 13 is the same as the length direction of the pressing plate 3; one end of the positioning column 4 passing through the waist-shaped hole 13 is provided with a liftable positioning component, and the other end is arranged on the base 1; one end of the limiting column 5 passes through the assembly hole, and the other end supports the base 1, and a liftable limiting component is provided on the limiting column 5 corresponding to the position between the pressing plate 3 and the positioning seat 2.

[0036] In actual application, by setting the waist-shaped hole 13 to cooperate with the positioning column 4, the operator can adjust the position of the pressing plate 3 according to actual needs, so that the pressing plate 3 can better cooperate with the butterfly valve, which is conducive to improving the pressing and fixing effect of the pressing plate 3 on the butterfly valve 18, and improving the applicability of this processing device. At the same time, by setting the positioning component and the limiting component above and below the pressing plate 3 respectively, the positioning component and the limiting component can cooperate to achieve the limiting of the pressing plate 3, which is conducive to improving the stability of the pressing plate 3 and ensuring the pressing and positioning effect of the pressing plate 3 on the butterfly valve.

[0037] Specifically, the operator can first align and install the pressing plate 3 on the positioning column 4 and the limiting column 5, and slide and adjust the pressing plate 3 along the waist-shaped hole 13, so that the end of the pressing plate 3 can better cooperate with the butterfly valve. After that, the positioning component can be moved down first to make the end of the pressing plate 3 preliminarily press the butterfly valve 18, and then the limiting component can be moved up, and the limiting component and the positioning component can be used to cooperate to further position the pressing plate 3. At this time, the other end of the pressing plate 3 can produce an upward tendency under the upward action of the limiting component, so that the end of the pressing plate 3 that cooperates with the butterfly valve further presses down the butterfly valve, and the butterfly valve is pressed and fixed. Therefore, by adopting the positioning component and the limiting component set as above to cooperate to realize the dislocation clamping and fixing of the pressing plate 3, during the processing of the butterfly valve, the pressing plate 3 can always play a stable role in pressing and fixing the butterfly valve, which is conducive to improving the processing quality and processing accuracy.

[0038] Preferably, the positioning seat 2 and the limiting column 5 are correspondingly arranged on the left and right sides of the base 1, and the positioning column 4 is correspondingly arranged in the middle of the base 1. Exemplarily, the positioning column 4 is vertically arranged in the middle of the base 1 and is coaxially arranged with the base 1. By correspondingly arranging the positioning seat 2 and the limiting column 5 on both sides of the base 1, the operator can also rotate and adjust the pressing plate 3 with the positioning column 4 as the center, thereby increasing the adjustable range of the pressing plate 3, which is conducive to further improving the pressing and fixing effect of the pressing plate 3 on the butterfly valve.

[0039] In addition, by adopting the above-mentioned cooperation mode of the positioning component and the limit component, even after the pressure plate 3 is rotated and moved for adjustment, the pressure plate 3 can still be clamped and fixed by utilizing the cooperation of the positioning component and the limit component, so that the pressure plate 3 can be used to clamp and fix the butterfly valve 18, and the operation is simple, which reduces the difficulty of operation and use of this processing device.

[0040] Preferably, a conical end portion 14 is provided at one end of the pressing plate 3 facing the positioning seat 2. Exemplarily, by providing the conical end portion 14, the area of ​​the end portion of the pressing plate 3 is reduced while ensuring the structural strength of the pressing plate 3, so that the end portion of the pressing plate 3 can better contact the surface of the butterfly valve, thereby achieving compression and fixation of the butterfly valve 18.

[0041] Preferably, the adjustment assembly 7 includes a top screw, and the base 1 is provided with a threaded hole that cooperates with the top screw. Exemplarily, the adjustment assembly 7 can be evenly arranged in four, six, eight or more. Those skilled in the art can change the number of the adjustment assembly 7 according to the actual support positioning and leveling needs, so that multiple adjustment assemblies 7 can work together to achieve stable support positioning of the butterfly valve, which will not be repeated here. In addition, those skilled in the art can also select other forms of adjustment assembly 7 according to actual needs to achieve lifting and lowering adjustment, and then achieve leveling of the butterfly valve 18, which will not be repeated here.

[0042] By evenly arranging a plurality of top screws around the positioning groove 6, the operator can use the multiple top screws to support the butterfly valve 18 by screwing the top screws, and by adjusting the height of each top screw, the butterfly valve 18 is horizontally arranged on the positioning seat 2, which is convenient for the subsequent use of the clamping mechanism to press and fix the butterfly valve 18, which is beneficial to improve the subsequent processing accuracy of the butterfly valve 18.

[0043] In actual application, an annular groove 8 is provided below the positioning seat 2, and the threaded hole is connected to the annular groove 8. By providing the annular groove 8, it is convenient for operators to screw the top screw, reducing the difficulty of screwing and adjusting the top screw.

[0044] Preferably, the positioning assembly includes a positioning nut 9 and a positioning gasket 10, and the positioning gasket 10 is arranged between the positioning nut 9 and the pressure plate 3. Exemplarily, the positioning column 4 can be a stud, and the positioning column 4 and the base 1 can also be connected by a thread. The base 1 is provided with a threaded hole that matches the positioning column 4, so as to facilitate the assembly and replacement of the positioning column 4, which is conducive to reducing the difficulty of assembly and maintenance of such a processing device.

[0045] Preferably, the limiting assembly includes a limiting nut 11 and a limiting gasket 12, and the limiting gasket 12 is arranged between the limiting nut 11 and the pressure plate 3. Exemplarily, a support portion 15 is provided at one end of the limiting column 5 facing the base 1, and a threaded portion 16 cooperating with the limiting nut 11 is provided at the other end, and the diameter of the supporting portion 15 is greater than the diameter of the threaded portion 16. By providing the supporting portion 15, it is beneficial to improve the structural strength of the limiting column 5 itself, and increase the contact area between the limiting column 5 and the base 1, so as to ensure that the limiting assembly can continuously and stably support the end of the pressure plate 3.

[0046] Preferably, the positioning seat 2 is detachably mounted on the base 1, and at least two rhombus pins 17 are evenly arranged on the base 1 along the circumference of the positioning seat 2, and the positioning seat 2 is provided with positioning holes that cooperate with the rhombus pins 17. By installing the positioning seat 2 in a detachable manner, the operator can conveniently replace the appropriate positioning seat 2 according to actual processing needs, which is conducive to further improving the applicability and versatility of this processing device.

[0047] Exemplarily, the positioning seat 2 can be fixed on the base 1 by countersunk bolts, the base 1 is provided with mounting holes for installing countersunk bolts, and the positioning seat 2 is provided with threaded holes that match the countersunk bolts. Specifically, two countersunk bolts can be evenly arranged along the circumference of the positioning seat 2, and two corresponding diamond pins 17 can also be evenly arranged. Under the dual positioning of the diamond pins 17 and the countersunk bolts, the positioning seat 2 can always be stably installed on the base 1, which is conducive to improving the positioning effect of the positioning seat 2 on the butterfly valve 18 and ensuring the stability of the butterfly valve during the processing process.

[0048] This processing device can be used according to the following steps:

[0049] Install the butterfly valve 18 on the positioning seat 2, gently hold the pressure plate 3, visually observe the outer circle position of the butterfly valve 18, and adjust the height of the four top screws according to the height angle to make the outer circle height consistent (that is, the butterfly valve is horizontally set on the positioning seat 2). After adjusting to the appropriate position, use the pressure plate 3 to press the butterfly valve 18, and then adjust the height of the limit nut 11 and the positioning nut 9 to fix the pressure plate 3, so that the pressure plate 3 can stably press and fix the butterfly valve 18. After pressing the pressure plate 3, start to process the step surface and drill holes according to the CNC program. In this embodiment, four top screws can be used to achieve the leveling of the butterfly valve 18. When using a similar structure as a reference, the number of top screws can be appropriately increased according to the size and quality of the butterfly valve 18 blank, and increased to 6, 8, etc. in an even number column to prevent the poor quality of the top screw holding position from affecting the adjustment result.

[0050] The processing device described in this embodiment can not only realize the support and positioning of the butterfly valve, but also realize the clamping and fixing of the butterfly valve by correspondingly arranging the positioning mechanism and the clamping mechanism on the base. It integrates marking and processing in one and is easy to assemble and use, which is conducive to improving the processing accuracy and processing quality.

[0051] Embodiment 2

[0052] Embodiment 2 of the present invention provides a flowchart of a method for processing a butterfly valve. This processing method uses the processing device in the above embodiment and can be used to process a butterfly valve, which is beneficial to improving the processing quality and manufacturing consistency of the butterfly valve. Specifically, this processing method specifically includes the following steps:

[0053] Step 101, place the part to be processed on the positioning seat, use the positioning mechanism to support and position the part to be processed and level it, and then use the clamping mechanism to clamp and fix the part to be processed. For details, please refer to the method of using the above processing device, which will not be repeated here.

[0054] Step 102: After fine milling of the step surface and drilling of the part to be processed on the positioning seat, a pre-processed part is obtained. Specifically, after the processing is completed, the loose pressure plate can be disassembled, and then the pre-processed part can be removed, which is easy to operate.

[0055] Step 103, deburring the primary processed part to obtain a secondary processed part. Specifically, burrs generated by the milling step surface drilling process are removed.

[0056] Step 104, use the tailstock center of the lathe fixture to hold the primary processed part, and use the hole on the secondary processed part for positioning, then fine turn the spherical surface and the groove to obtain the tertiary processed part.

[0057] Step 105: Use soft boring jaws to clamp the spherical surface of the three-processed part and use grooves for positioning. After the center runout is ≯0.03mm, fine mill the surface and hole to obtain a butterfly valve.

[0058] Step 106: Perform aging treatment on the butterfly valve to eliminate processing stress. Specifically, artificial aging treatment can be used to improve treatment efficiency.

[0059] The processing method described in this embodiment can obtain a higher processing benchmark for the butterfly valve casting blank, ensure the processing quality and manufacturing consistency of the butterfly valve. At the same time, it can also simplify the manufacturing method and process of the butterfly valve, simplify the clamping and operation during the processing, not only easy to copy, but also can effectively ensure the processing quality of the butterfly valve and improve the processing efficiency.

[0060] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A butterfly valve processing device, characterized in that: It comprises a base (1), and a positioning mechanism and a pressing mechanism correspondingly arranged on the base (1); The positioning mechanism comprises a positioning seat (2), the positioning seat (2) is provided with a positioning groove (6) matched with a butterfly valve (18), and at least four liftable adjustment components (7) are evenly arranged at positions around the positioning groove (6) on the positioning seat (2); The clamping mechanism comprises a positioning column (4), a limiting column (5) and a pressing plate (3); one end of the pressing plate (3) is provided with a waist-shaped hole (13) which cooperates with the positioning column (4), and the other end is provided with an assembly hole which cooperates with the limiting column (5); the length direction of the waist-shaped hole (13) is the same as the length direction of the pressing plate (3); one end of the positioning column (4) passing through the waist-shaped hole (13) is provided with a liftable positioning component, and the other end is arranged on the base (1); one end of the limiting column (5) passes through the assembly hole, and the other end supports the base (1), and a liftable limiting component is provided on the limiting column (5) at a position corresponding to the pressure plate (3) and the positioning seat (2).

2. A butterfly valve processing device according to claim 1, characterized in that: The positioning seat (2) and the limiting column (5) are correspondingly arranged on the left and right sides of the base (1), and the positioning column (4) is correspondingly arranged in the middle of the base (1).

3. A butterfly valve processing device according to claim 1, characterized in that: The end of the pressing plate (3) facing the positioning seat (2) is provided with a conical end portion (14).

4. A butterfly valve processing device according to claim 1, characterized in that: The adjustment assembly (7) comprises a top screw, and the base (1) is provided with a threaded hole that matches the top screw.

5. A butterfly valve processing device according to claim 4, characterized in that: An annular groove (8) is provided below the positioning seat (2), and the threaded hole is in communication with the annular groove (8).

6. The butterfly valve processing device according to claim 1, characterized in that: The positioning assembly comprises a positioning nut (9) and a positioning gasket (10), and the positioning gasket (10) is arranged between the positioning nut (9) and the pressure plate (3).

7. The butterfly valve processing device according to claim 1, characterized in that: The limiting assembly comprises a limiting nut (11) and a limiting gasket (12), and the limiting gasket (12) is arranged between the limiting nut (11) and the pressure plate (3).

8. The butterfly valve processing device according to claim 7, characterized in that: The limiting column (5) is provided with a support portion (15) at one end facing the base (1), and a threaded portion (16) cooperating with the limiting nut (11) at the other end, and the diameter of the supporting portion (15) is greater than the diameter of the threaded portion (16).

9. The butterfly valve processing device according to claim 1, characterized in that: The positioning seat (2) is detachably mounted on the base (1); at least two rhombus pins (17) are evenly arranged on the base (1) along the circumference of the positioning seat (2); and the positioning seat (2) is provided with positioning holes that cooperate with the rhombus pins (17).

10. A method for using a butterfly valve processing device as claimed in any one of claims 1 to 9, characterized in that: include: Step 101, placing the part to be processed on the positioning seat, using the positioning mechanism to support, position and level the part to be processed, and then using the clamping mechanism to clamp and fix the part to be processed; Step 102, performing precision milling of the step surface and drilling of the to-be-processed part on the positioning seat to obtain a pre-processed part; Step 103, deburring the primary processed parts to obtain secondary processed parts; Step 104, using the tailstock top of the lathe fixture to hold the primary processed part, and positioning it with the hole on the secondary processed part, and then finishing the spherical surface and the groove to obtain the tertiary processed part; Step 105, use soft boring jaws to clamp the spherical surface of the three-processed part, and use grooves to position it. After the center runout is ≯0.03mm, the surface and the hole are finely milled to obtain a butterfly valve; Step 106: Perform aging treatment on the butterfly valve to eliminate processing stress.

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